Theoretical Investigation of Metal-Support Interactions on Ripening Kinetics of Supported Particles
文献类型：期刊论文
| 作者 | Hu, Sulei2,4; Li, Wei-Xue1,2,3 |
| 刊名 | CHEMNANOMAT
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 4期号:5页码:510-517 |
| 关键词 | Ostwald Ripening Metal Support Interaction Kinetics Nanoparticles |
| ISSN号 | 2199-692X |
| DOI | 10.1002/cnma.201800052 |
| 文献子类 | Article |
| 英文摘要 | The stability of supported metal particles is one of the key issues for successful industrialization of catalysts. A theoretical study of Ostwald ripening of supported particles and its dependence on metal-support interactions, sublimation energy, and surface energy is reported. Two distinct metal-support interactions are differentiated: metal particle-support and metal atom-support. Although strong metal particle-support interaction (small contact angle) stabilizes the supported particles and improve the ripening resistance, strong metal atom-support interactions decrease the total activation energy and dramatically lower the onset temperature and half-life time of ripening, a fact that should be prevented. Moreover, supported particles with low surface energy and/or high sublimation energy of supported particles would have a high onset temperature and a long half-life time. Compared to the metal particle-support interaction and surface energy, the metal atom-support interaction and sublimation energy are most influential to the overall ripening resistance. The present work highlights the importance of interplay between two types of metal-support interactions on the overall stability of supported particles. |
| WOS关键词 | STEAM-REFORMING CATALYSTS ; SINGLE-ATOM CATALYSTS ; GOLD NANOPARTICLES ; CO OXIDATION ; OXIDE SURFACES ; HETEROGENEOUS CATALYSIS ; SIZE DISTRIBUTIONS ; MESOPOROUS SILICA ; MODEL CATALYST ; ADSORPTION |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000431629500011 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/167162]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Li, Wei-Xue |
| 作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Univ Sci & Technol China, CAS Excellence Ctr Nanosci, iCHeM, Dept Chem Phys,Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China 4.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Sulei,Li, Wei-Xue. Theoretical Investigation of Metal-Support Interactions on Ripening Kinetics of Supported Particles[J]. CHEMNANOMAT,2018,4(5):510-517. |
| APA | Hu, Sulei,&Li, Wei-Xue.(2018).Theoretical Investigation of Metal-Support Interactions on Ripening Kinetics of Supported Particles.CHEMNANOMAT,4(5),510-517. |
| MLA | Hu, Sulei,et al."Theoretical Investigation of Metal-Support Interactions on Ripening Kinetics of Supported Particles".CHEMNANOMAT 4.5(2018):510-517. |
入库方式： OAI收割
来源：大连化学物理研究所
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